CN104797879B - Particularly for the lighting unit of road illumination - Google Patents
Particularly for the lighting unit of road illumination Download PDFInfo
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- CN104797879B CN104797879B CN201380062416.XA CN201380062416A CN104797879B CN 104797879 B CN104797879 B CN 104797879B CN 201380062416 A CN201380062416 A CN 201380062416A CN 104797879 B CN104797879 B CN 104797879B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
- F21V5/005—Refractors for light sources using microoptical elements for redirecting or diffusing light using microprisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Abstract
The present invention provides a kind of lighting unit（100）, it includes (a) lighting unit chamber（130）, (b) is used for light source cell light（111）Light source cell（110）, wherein light source cell（110）Including light source（1100）And collimater（1200）, and (c) light exit window（120）, it is configured as sealing lighting unit chamber（130）At least part and be configured as allow light source cell light（111）At least partly as light beam（101）Transmission, wherein light exit window（120）Including upstream face（125）And downstream face（126）, wherein upstream face（125）Point to lighting unit chamber（130）；Wherein upstream face（125）Including light outcoupling structure（140）, it is configured as via light exit window（120）By light source cell light（111）It is coupled to lighting unit（100）Outside.
Description
Technical field
The present invention relates to the lighting unit particularly for road illumination.
Background technology
Uses of the LED in street lighting is known in the art.For example, US7578605, which describes one kind, has twin shaft
Control（Beam collimation is occurred by it and wide-angle beam is overlapping）Reflector system, and a kind of kept off by cutting planar reflective
Plate and by gained flat formed to collect and the three-dimensional reflection body of light of the shaping from solid state LED in it is such to manufacture
The method of system, wherein each axle can be customized by changing cutting and the bending of flat piece.Especially, it this document describe one kind
Street lamp application with the exemplary lighting module being assembled in luminaire, thus light ray Longitudinal extending and ray is in transverse direction
Side upwardly extends.
WO2007/111547A1 discloses a kind of light equipment for including light source, reflector and the lensed glass cover of tool, comes
Lens are directly impinged upon indirectly and from light source via reflector with the distribution in the incidence angle more than 20 ° from the light of light source
On.
The content of the invention
Current most of LED illuminators are included by being used as lens, MLO（Lenticule optics）Plate or reflector cup
The LED of optical module shaping（Light emitting diode）Array., it is necessary to reduce brightness outside a certain angle in extensive application.Show
Example is office lighting and road lighting, and the wherein angle respectively is about 60 or 70 degree（Angle of cut-off）.
However, in many applications, a large amount of light being used for it is desirable to preference under the angle of illumination purpose, such as
Uniformity, it actually also reduces comfortableness.In office lighting, people want to produce under away from angle of the roof more than 60 degree
A large amount of light.Such light becomes known for appropriate facial illumination（For the session）.In road lighting, people run into similar
Situation.Can be by obtaining outstanding illuminance uniformity away from angle of the bar more than 70 degree.However, the light create it is a large amount of worried and
A certain limit should be suppressed to.Although referring only to intensity in some legislations, brightness also plays emphatically for comfortableness
Act on.
The yet another problem seen in the application that two are mentioned is so-called LED more spots.It is popular in two applications
Using LED array, its light is controlled by MLO plates or lens array.This typically results in the local high brightness peak value on exit window.To the greatest extent
Mean flow rate of the pipe on exit window can be tolerable, but local peaking may not tolerable.
Therefore, it is desirable to overcome problems with：(i) reduce the brightness under certain angle while maintain intensity, (ii) removes LED's
The more spots of vision, (iii) make system compared with independent of LED etc..Further it is expected to provide the careful of the angular light distribution in limited bulk
Structure.
Therefore, an aspect of of the present present invention especially provides a kind of alternative lighting unit, and it is preferably further at least partly arranged
Except one or more of disadvantages mentioned above and/or problem and/or meet one or more of above-mentioned expectation.
Here, among other things, proposition uses triangle exit window（But other shapes are also possible；See below）,
It, which not only reduces brightness, can also reduce LED more spots.
Therefore, in the first aspect, the present invention provides a kind of lighting unit, and it includes：(i) lighting unit chamber（" chamber "）,
(ii) light source cell of light source cell light is configurable to generate, wherein light source cell includes light source and collimater, wherein light source list
Member is configured as providing light source cell light in lighting unit chamber, and (iii) light exit window（" exit window "）, it is configured as
Seal at least part of lighting unit chamber and be configured as allowing transmiting at least partly as light beam for light source cell light, wherein
Light exit window includes upstream face and downstream face, and wherein upstream face points to lighting unit chamber；Wherein lighting unit has virtual first
Lighting unit sectional plane（" sectional plane "）In virtual first lighting unit axle（" lighting unit axle "）, wherein being put down in section
In face, at least 30% especially in light exit window, for example, at least 50%（Such as at least 75% in embodiment）On length：
- upstream face includes light outcoupling structure, and it is configured as light source cell via light exit window optically coupling to illumination
Outside unit, wherein light outcoupling structure can especially include prismatic light out-coupling structure,
- light source cell is especially configured as the particular subset of illumination light extraction structures, and at any of light exit window
Generate light source cell light, its have at the point light source cell light≤20 ° of incidence angle（β）In distribution, and
Wherein lighting unit is configurable to generate the light beam in light exit window downstream, and it has 90- especially in sectional plane
Beam angle in the range of 170（γ）.Especially, the intensity of light is found in the beam angle（Visible ray i.e. in units of watt
Intensity）At least 75%, or even more particularly at least the 85% of the intensity of light.Therefore, especially exist（It is multiple）Outside these angles of cut-off
It was found that overall strength（In units of watt）Be less than 25%, or even more especially less than 15%.Especially, beam angle（γ）At 90-160 °,
Such as in the range of 90-140 ° or 120-160 °.Usually, the beam angle（In sectional plane）It is symmetrical, i.e. beam angle
（γ）Can be at 2*45-2*80 °（I.e. 90-160 °）In the range of.In embodiment, beam angle（γ）Can be>140 ° and
In the range of 170 °.
Such lighting unit is advantageously used for the illumination of road.Using this lighting unit, light can be distributed in long band
On, and substantially it is not subjected to more spots or unexpected brightness.In addition, the present invention, which can provide, makes system compared with two independent of LED
Walk optics.Especially, as the LED of lighting unit（It is assumed that multiple LED）Light towards light exit window advance（By " transport "）When,
LED light starts spatially overlapping.At light exit window, it will be rebooted（Due to light outcoupling structure；See below）.By
In by transport that light created overlapping and this is rebooted, people will reduce LED more spots.Because the light from light exit window becomes
Must be more uniform, so outward appearance is compared with the number independent of used LED.For this reason, the scalable LED of people（And can
The optics of choosing）Outward appearance without changing the light from light exit window.
Therefore, lighting unit may be especially useful for the illumination of road.It is, however not excluded that should different from the other of road illumination
With being selected from the application of group for including the following：Office lighting systems, domestic. applications system, shop lighting systems, family
Front yard illuminator, strengthen illuminator, spot lighting systems, Theatre lighting systems, optical fiber optical device application system, projection system
System, lights display system certainly, pixelation display system, segment display system, alerts notation, medical illumination application system,
Indicator notation, decorative lighting system, portable system, automobile application and Green house lighting systems.This paper term " road
Road " is among other things（Also）It may refer to road, highway, street, lane, tree-covered walkways, lie, fast traffic lane, expressway, public affairs
It is road, track, parking lot, stopway, passage, path, pavement, railway, road surface, route, street, tunnel, corridor, arterial highway, straight
Up to road, expressway, track, path, turn pike, overpass etc..It refers to times that vehicle can travel over
What entity, and the entity has for example>1, especially>>100 aspect ratio.However, the lighting unit of the present invention can also be used to compare
Such as parking lot, square, vacant lot, stadium big region illumination.
The additional advantage of the lighting unit of the present invention is can to apply any light source, especially any LED light source in principle.Cause
This, additional advantage is that light source can be interchangeable.
In particular embodiments, light source includes solid state LED light source（Such as LED or laser diode）.Term " light source " is also
It can relate to multiple light sources, such as 2-5000, such as 2-200, such as 10-200, such as 20-200 or 2-20（Solid-state）LED light
Source.Therefore, term LED may also refer to multiple（Solid-state）LED.Light source is specifically configured as generating visible ray.This can be white
Light can be colourama.Therefore, in embodiment, light source cell includes solid state LED（Light emitting diode）.Lighting unit can wrap
Include multiple light sources unit, such as 2-5000, such as 2-200, such as 10-200, such as 20-200 or 2-20.In addition, light source list
Member may include multiple light sources.Alternatively, multiple light sources share single collimator.Light source cell is described further below.Light source
Can be with right and wrong spot light.Non- spot light can be defined as dimensionally sufficiently large and sufficiently close to beholder to show as by light
According to surface rather than starlike luminous point light source.For example, LED light source can be applied, it, which has, is more than 0.5cm2Die area, example
Such as larger than 1cm2Die area, such as even equal to or more than 2cm2Die area tube core.Especially, when using non-dots light
Source（Such as with more than 0.5cm2Die area）When, light source cell can not necessarily include collimater.In addition, in such reality
In example, lighting unit can especially include the array of such light source cell, and the array is perpendicular to sectional plane（And parallel to vertical
Axle, with further reference to hereafter）.
Lighting unit includes lighting unit chamber, light source cell and light exit window.Such as those skilled in the art it will be clear that, also
It may include other element, such as control, power supply etc..
Lighting unit includes lighting unit chamber.This can be considered as light room, and it is at least partly surrounded by light exit window.Illumination is single
First chamber is middle empty（Or the ducted body of usual multiple enclosing element）, it receives light source cell light.In other words, light source cell is configured
To provide light source cell light in lighting unit chamber.In embodiment, lighting unit chamber includes at least part of light source cell.Especially
It, substantially whole lighting unit chamber is by (i) light exit window, (ii)（It is multiple）Light source cell or including（It is multiple）Light source cell
Alternatively reflector is surrounded by part and (iii).Pay attention to, term reflective body may also refer to multiple reflectors.In other words, illumination is single
First chamber is surrounded by shell, shell can comprise at least light exit window and comprising（It is multiple）The part of light source cell（Also it is designated as herein
Supporter（Supporter（Further）Including one or more light source cells）, and alternatively another part, rear portion is especially
It is reflexive.Therefore, the part of chamber can be sealed by reflector.Pay attention to, supporter can also be reflexive or including anti-
Penetrate part.Because chamber is surrounded, chamber is（Substantially）The unit of closure, it has at least one portion of energy transmitted light
（That is light exit window）.Especially, the remainder of shell is reflexive.This paper term " reflectivity " is especially indicated to visible ray
It is reflexive.
As indicated above, light exit window is configured as allowing transmiting at least partly as light beam for light source cell light, its
Middle light exit window includes upstream face and downstream face, and upstream face points to lighting unit chamber.Therefore, light exit window includes inner face and outer
Face.The latter can be perceived when lighting unit is in operation by the observer of lighting unit.Therefore upstream face surrounds illumination
At least part of unit chamber.
Upstream face includes light outcoupling structure, and it is configured as via light exit window that light source cell is single optically coupling to illumination
Outside member.This can especially imply the light advanced by lighting unit chamber from light source cell and impinge upon light outcoupling structure
On, penetrate light out-coupling structure and light exit window（Remainder）And fled from via face downstream from light exit window.Especially,
Light outcoupling structure may include prismatic light out-coupling structure.In this manner, via total internal reflection（TIR）, light can leave（It is multiple）
Light outcoupling structure and light exit window, and contribute to the beam in light exit window downstream.Especially, the major part of upstream face includes this
A little light outcoupling structures.For example, at least the 30% of light exit window may include such light outcoupling structure.These light outcoupling knots
Structure can have the size in the range of 0.1mm-1cm, such as 0.1mm-5mm, such as 0.2-2mm.Here, term " size " is outstanding
It is related to length, width or diameter.Especially, light outcoupling structure has face, such as prism, such as Tp and/or four
Face body prism, it has the edge for possessing the length in indicated scope.Therefore, in embodiment, light outcoupling structure bag
Include prism structure.Light outcoupling structure（Such as prism structure）Can be elongation, especially perpendicular to sectional plane（It is and outstanding
Its parallel to lighting unit the longitudinal axis, with further reference to hereafter）Direction on.Light outcoupling structure（Such as prism structure）Can have
The pitch and/or the angle of change changed.Pitch can be for example in about 0.1-1.5cm, such as 0.15-1.5cm, such as 0.5-
In the range of 1cm.
In order to help to limit the optical properties of lighting unit, virtual illumination unit shaft and virtual illumination unit section are defined
Plane.However, before illustrating in terms of these, the general shape of lighting unit, especially light exit window some are described first
Embodiment.
Generally, lighting unit（Especially its light exit window）There can be elliptical shape.In use, such as light
According to road, such mode that lighting unit can to configure lighting unit perpendicular to the direction of road is configured.Illumination
Unit can have body axle or the longitudinal axis（Virtual）.For example, parallel to the longitudinal axis, multiple light sources unit can configure.
In embodiment, light exit window is V-arrangement, and it has the angle being arranged in the range of 45-90 °（δ）Under
Two facets.In this embodiment, lighting unit can especially have slot-like shape or（Elongation）Triangular-prism shapes.Arrangement
Two in indicated angle（Elongation）Face（" facet "）Light exit window can be substantially provided；Remaining（Elongation）Face
It may include one or more light source cells.Therefore, in embodiment, light exit window has the shape of the V-shaped groove of elongation.
However, light exit window can also have curvature（On the direction perpendicular to the longitudinal axis）.Therefore, in embodiment, light goes out
Penetrating window has curved shape.For example, lighting unit, especially its light exit window, can have the shape of frustoconical.Therefore,
In embodiment, light exit window has the shape of the elongation frustoconical of such as groove.
Light exit window can（Therefore）Also include multiple facets, such as two or more.For V-arrangement light exit window, light outgoing
Window generally comprises two facets（Referring further to above）.However, light exit window may also include three or more facets.In embodiment
In, light exit window can be for example including three facets, wherein the longitudinal axis of three facets parallel to lighting unit.Therefore, in embodiment
In, light exit window includes multiple facets, and one of facet is arranged to perpendicular to the first lighting unit axle（It will enter below
One step illustrates）.
Therefore, in embodiment, light exit window has non-flat forms（On-plane surface）Shape, for example bend or have facet.This
Place, the shape in the description of shape more particularly to sectional plane.For example, light exit window can（In 3D）Including semi-cylindrical shape
Or slotted shape etc..
In another embodiment, light exit window（Substantially）It is flat（Or plane）'s.Especially, the length of light exit window
（I.e. in sectional plane and perpendicular to length/length in operation for being generally parallel to road of lighting unit axle）And chamber
Height be selected as in operation generation with beam angle mentioned above light beam.In such embodiments, shell bag
Include（Substantially）Flat light exit window.In addition, such shell will generally include reflector, wherein light exit window is arranged in instead
The side of beam（Downstream）Place.At the upstream side of reflector, light source cell is arranged（Or multiple light sources unit）.Especially, exist
In such embodiment, the beeline between light source cell and reflector is small, such as<10cm, especially<5cm, such as
<In the range of 2.5cm.Generally, reflector start will with for light source cell supporter physical contact.Therefore supporter can be
It is relatively narrow.As indicated above, supporter can also have reflecting attribute.It is empty in the case of application multiple light sources unit
The maximum mutual distance intended between the light source cell in sectional plane is also relatively short, such as<10cm, especially<5cm, such as<
2.5cm。
Light source cell（In operation）Light of the generation with beam axis.Generally, the direction of propagation of beam axis instruction light.It is assumed that
Single source unit, its beam axis will be typically configured as perpendicular to the longitudinal axis.It is assumed that multiple light sources unit, the beam of multiple light sources
Axle typically will be also configured as perpendicular to the longitudinal axis.Especially, on an average, the beam axis of multiple light sources typically will also be configured as hanging down
Directly in the longitudinal axis.
Here, limit the first lighting unit axle.In order to which for the sake of some aspects for limiting lighting unit, this is imaginary axis.Especially
It, the first lighting unit axle can be with the beam overlapping of axles of light source cell.Therefore, usually, the first lighting unit axle will hang down
Directly in the longitudinal axis, it is assumed that if elliptical illumination unit.When application is arranged parallel to the array of the longitudinal axis（1 dimension or multidimensional）In
During multiple light sources, multiple first lighting unit axles can be also limited, it is especially in one plane.The plane especially may also include photograph
The longitudinal axis of bright unit.
Here, further define the first lighting unit sectional plane（" sectional plane "）.The first lighting unit sectional plane is
Virtual plane.First lighting unit sectional plane includes the first lighting unit axle.Elliptical illumination unit is assumed again that, first shines
Bright unit sectional plane will be perpendicular to the longitudinal axis.It is assumed that lighting unit is in operation, and lighting unit is arranged on road, then
One lighting unit axle can be perpendicular to road, and the first lighting unit sectional plane also can be perpendicular to road；However, also parallel with
The longitudinal axis of road.It is assumed that using the multiple light sources unit being arranged parallel in the array of the longitudinal axis, each（First）Lighting unit
Can be included by corresponding first lighting unit sectional plane；Therefore provide（First）Lighting unit sectional plane can be configured
To be parallel to each other, and parallel arrangement can be formed（First）The array of lighting unit sectional plane（It can be perpendicular to the longitudinal axis）.
First lighting unit sectional plane is especially configured as perpendicular to light exit window.
Hereinafter, the one of the present invention is explained with reference to virtual first lighting unit axle and virtual first lighting unit sectional plane
A little aspects.However, when exist it is multiple these when, e.g. particularly application be longitudinally arranged light source cell array when, hereafter limit
Fixed aspect can relate to each part for the light exit window that wherein the first sectional plane intersects with light exit window.In other words, on
Distribution in incidence angle（It see below）With light outcoupling structure（Referring also to hereafter）Be particularly limited to and can be applied to light exit window
Upstream face area 30% or more.
As indicated above, the first lighting unit sectional plane is especially perpendicular to light exit window.Therefore, along light exit window
In the presence of the line that wherein the first lighting unit sectional plane intersects with the upstream face of light exit window.In the case of V-arrangement light exit window,
The line will be straight line（Or two straight lines）, and in the case of the light exit window of bending, the line will be curve, etc..The line
With length, and at least the 30% of the length, such as at least the 50% of the length, following condition is applicable：Light source list
Member is configured as a bit in light exit window（P）Place's generation light source cell light, it is in the point（P）Place has light source cell light
≤ 20 ° of incidence angle（β）In distribution.Because light source cell may not be pure spot light, at same position, light source list
The light of member is potentially based on light ray and struck against from the position that light source cell is fled under different angle on light exit surface.Cause
This, light source cell, and the size of light unit chamber, i.e. such as LED die size, alternatively collimator size and certain illumination are single
First chamber size, to cause the distribution in incidence angle no more than being selected in a manner of≤20 ° such.For example, in incidence angle
Distribution can be in the range of 1-20 °.Especially, light source cell be configured as light exit window a bit（P）Place's generation light source list
First light, it is in the point（P）Place with light source cell light≤10 ° of incidence angle（β）In distribution.
When application multiple light sources unit, this is applicable to each light source cell.Pay attention to, each light source cell there can be it
Corresponding sectional plane.
Therefore, these general and special conditions of contract are applied at least 30% of the length along the line of light exit window, even more
Especially at least along light exit window the line length at least 50%.In embodiment, these general and special conditions of contract are applicable
In at least the 75% of the length of the line along light exit window.Therefore, the 30% of length（Or more）Should in the range of it is any
Point P comes from reception（It is multiple）Distribution in the light of light source cell, wherein incidence angle is not more than≤20 °.Especially for（It is more
It is individual）Each light source cell of light can be provided at point P, assessed（It is multiple）Point（P）The distribution in the incidence angle at place.Especially, when depositing
In multiple light sources unit, the distribution that each light source cell individually determines incidence angle can be directed to.
At least the 30% of the length, such as at least the 50% of the length, following condition is also applicable：Upstream face includes
Light outcoupling structure, its be configured as via light exit window by light source cell optically coupling to lighting unit outside, the wherein outer coupling of light
Prismatic light out-coupling structure can especially be included by closing structure.Light outcoupling structure has been described above.In particular embodiments, upstream
At least the 50% of face includes prismatic light out-coupling structure.
Therefore, these general and special conditions of contract are applied at least 30% of the length along the line of light exit window, even more
Especially at least along light exit window the line length at least 50%.Therefore, substantially 30%（Or more）The scope
Interior any point P will be prism structure（Or the array of prism structure）Part.
In this way, lighting unit can be configurable to generate the light beam in light exit window downstream, and it has in sectional plane
90-170°（Such as 90-140 ° or 120-160 °）In the range of beam angle（γ）.In the angular range, it is possible to find illumination
The intensity of the visible ray of unit light（Watt）At least 75%.Therefore, in embodiment, lighting unit is especially configurable to generate
The light beam in light exit window downstream, the wherein light beam, which have, is especially equal to or less than 170 °, such as the cone angle equal to or less than 140 °.
Especially, the cone can be the cone of elongation, and it has the maximum cone angle in the range of 90-170 °, such as 90-140 °（And
Less than the minimum cone angle of maximum cone angle）.The beam, which can have, to be possessed for example>2, such as>4, in embodiment>10 or even>100
Aspect ratio area of section.In this way, it is possible to provide can high-efficiency light irradiation road beam.In particular embodiments, beam can
With possessing for example>The area of section of 4 aspect ratio.
Return to the geometrical aspects of lighting unit：In particular embodiments, in sectional plane, in light exit window
, below also can be especially suitable especially at least the 50% of the length at least on 30% length：With lighting unit axle
Inclination angle in the range of 30-60 °（α）Under arrange light exit window.Therefore, at least 30% length, any point will have
There is such inclination angle.For example, the inclination angle of V-arrangement light exit window can be in the range of especially 30-60 ° for two facets（Also
See above）.For the major part of the length, smaller or greater angle may cause worse outer coupling efficiency.So
And pay attention to, in the case of such as frustoconical, the part of upstream face can have bigger angle, and part can have pass
In the smaller angle of the first lighting unit axle.Especially, in the case where the first lighting unit axle intersects with light exit window, the angle
Degree can be 90 °, and can be approached in certain embodiments in the opening position closer to the part including light source cell, the angle
0°（Or 180 °）（It is arranged essentially parallel to the first lighting unit axle）.
In addition to it can be the light outcoupling structure of prism-type structure, can also exist and be configured as light via refraction
The structure being directed to outside lighting unit chamber.Therefore, in embodiment, upstream face is also included with refraction light outcoupling structure
Section.Generally, the section with refraction light outcoupling structure is at the angle bigger with the first lighting unit axle, and compared to tool
There is the section of refraction light outcoupling structure, the section with prismatic light out-coupling structure is in smaller with the first lighting unit axle
At angle.And for these light outcoupling structures, such as prism structure, it is applicable, they can have change pitch and/or
The angle of change.Pitch can be for example in the range of about 0.1-1.5cm, such as 0.15-1.5cm, such as 0.5-1cm.
For good efficiency and good light distribution, it may be advantageous to, the special ratio of the size of restriction lighting unit chamber
Example.Especially, chamber has chamber height and maximum cavity width, and its lumen height is more than 0.4 to the ratio of chamber width.Even particularly
Ground, chamber height is to the ratio of chamber width in the range of 0.4-2, such as at least 0.7.This may be especially useful for wherein light exit window
It is non-flat forms（On-plane surface）, such as bending or V-arrangement or the embodiment for having facet.
As indicated above, light source cell may include collimater.The equipment of collimater especially constriction light beam.It can answer herein
With different types of collimater, including it is also known as compound parabolic concentrator（CPC；It may be additionally used for the collimated light in CPC
The light in source）Type.Especially, collimater is configured as collimating in the dimension perpendicular to sectional plane（It is multiple）The light of light source.
It is assumed that lighting unit operates on road, this can especially cause（More）Narrow illumination radiation（Width compared to road is narrow
's）.In this way, this helps to obtain the light beam with wide aspect ratio（I.e. in the length of road）.However, collimater may be used also
It is configured as being collimated in the dimension parallel to sectional plane.This can help to reduce the incidence on the upstream face of light exit window
Distribution in angle.Such as the distribution is excessive, then this will cause without cut-off（Angle）Outside angle at artifact in the case of
It is difficult to the light rebooted.The part just good starting point is cut off from the beginning.Therefore, in embodiment, light source cell can be with
Alternatively include collimater, the collimater can especially be configured as the collimated light source light in one or two dimension.Collimater can
The collimated light in the dimension parallel to sectional plane and/or in the dimension of sectional plane.Therefore, it is accurate in embodiment
Straight device is especially configured as the collimated light source light on the direction perpendicular to sectional plane.In embodiment, collimater can be anti-
Beam, such as V-arrangement reflector（With the longitudinal axis parallel to the first lighting unit sectional plane）.However, collimater can also be
Composite parabolic collector（Referring further to above）.In particular embodiments, each light source cell includes light source and is configured to be defined
The directly collimater of the light from respective sources.In still further embodiment, when applying multiple light sources unit, and multiple light sources list
Member（Each）During including collimater, the 2D arrays of light source cell can be applied（The array of collimater, wherein collimater support can be applied
Pipe one or more light source）.
For other collimation, especially in the plane perpendicular to the first lighting unit sectional plane（Or direction）On standard
Directly, also optical signature can be provided in the downstream face of light exit window.Therefore, in embodiment, light exit window can further comprise
The multiple of downstream face reboot structure（Light reboots structure）.These of downstream face reboot structure and can be especially configured as
Control distribution of the light source light on the direction perpendicular to sectional plane.Therefore, downstream face these reboot structure can be especially
It is configured as controlling distribution of the light source light on the direction perpendicular to sectional plane.Again, the structure that reboots of these types can
To be prism-type structure.These structures can ensure that light in the dimension perpendicular to the dimension of the first lighting unit sectional plane（
When being operated on road, e.g. in the dimension of the direction of propagation on road）It is appropriate to spread.Pay attention to, the distribution
Control not only can reboot structure to control by provide downstream face, can also be additionally or alternatively by making light exit window
Upstream face at least part of prism structure tilt and control.Structure, such as prism structure are rebooted for these, is applicable
, they can have the pitch of change and/or the angle of change.Pitch can be for example in about 0.1-1.5cm, such as 0.15-
In the range of 1.5cm, such as 0.5-1cm.The light of downstream face reboots structure, such as prism structure, can be elongation, especially
It is parallel to sectional plane（And especially perpendicular to the longitudinal axis of lighting unit, with further reference to hereafter）Direction on.Therefore,
When following the line that wherein the first lighting unit sectional plane intersects with the upstream face of light exit window along light exit window, in upstream
It can find light outcoupling structure at face, and can find light in the downstream face of light exit window and reboot structure.Two kinds of structures can
To be the structure of elongation, and can be arranged in the array with normal pitch.Upstream structure has stretching parallel to the longitudinal axis
Major axis and downstream configurations have perpendicular to its axis of elongation.
In embodiment, the part of light exit window includes the light outcoupling structure at upstream face, light outcoupling structure tool
It is essentially arranged to parallel to lighting unit axle（Such as with the angle in the range of 0-5 ° with it）One or more
Facet.The part can be especially centered on lighting unit axle.Especially, can be therefore in 0-45 ° of beam angle（γ）In interior region
Find the part.But one or more of the other part can（Only）Including the facet with the more high angle with lighting unit axle,
Such as with the one or more under the angle in the range of 5-90 ° be arranged in lighting unit axle, especially 10-80 °
The light outcoupling structure of facet.These one or more of the other parts can be especially further from lighting unit axle.Especially, can therefore exist
30-90 ° of beam angle（γ）These one or more parts are found in interior region.The pitch of structure（Typically）Especially exist
In the range of 0.01-20mm.Especially, in embodiment, before including in the range of the 20-60% of the upstream face of light exit surface
One structure, and include latter arrangement in the range of the 30-70% of the upstream face of light exit surface.As indicated above, not
Whole upstream face may include light outcoupling structure.Especially, at least the 50% of upstream face includes light outcoupling structure, or even more specifically
It is at least 75%.Here, percentage refers to the upstream area of light exit surface.Therefore, the steepness of the facet of prism structure can be
Light exit window（Upstream face）On change.
As indicated above, lighting unit may include the array of light source cell and the light exit window of elongation, its by with
It is set at least part for sealing lighting unit chamber and is configured as allowing transmiting at least partly as light beam for light source cell light.
Therefore lighting unit that such lighting unit can especially extend, as indicated above, it, which has, is arranged parallel to illuminate
The array of light source cell in the array of the longitudinal axis of unit.Pay attention to, such array can also be nxm arrays, and wherein n and m exist
In the range of 1-500, especially n is in the range of 1-10, such as 2-10, and m is in 10-500, such as 20-200 scope
It is interior.Here, n may indicate that the number of the light source cell parallel to the first lighting unit sectional plane, and m may indicate that perpendicular to this
Plane（Such as parallel to the longitudinal axis）Array in light source cell number.
Therefore, the present invention provides a kind of lighting unit, and it includes：(i) lighting unit chamber（" chamber "）, (ii) is configured to make a living
Into the light source cell of light source cell light, wherein light source cell includes light source and alternatively collimater, wherein light source cell are configured
To provide light source cell light, and (iii) light exit window in lighting unit chamber（" exit window "）, it is configured as sealing illumination
At least part of unit chamber and it is configured as allowing transmiting at least partly as light beam for light source cell light, wherein light exit window
Including upstream face and downstream face, wherein upstream face points to lighting unit chamber, and wherein upstream face includes light outcoupling structure, its by with
Be set to via light exit window by light source cell optically coupling to lighting unit outside, wherein light outcoupling structure can especially include prism
Light outcoupling structure, and
Wherein lighting unit is configurable to generate the light beam in light exit window downstream, and it especially has in the range of 90-170 °
Beam angle（γ）, wherein light exit window especially includes non-flat shape, such as the shape of bending or the shape or V-arrangement that have facet
Shape.Especially, the intensity of light is found in the beam angle（Visual intensity i.e. in units of watt）At least 75%, even
More particularly at least the 85% of the intensity of light.Therefore, especially exist（It is multiple）Overall strength is found outside these angles of cut-off（Using watt as
Unit）Be less than 25%, even more particularly less than 15%.Especially, beam angle（γ）At 90-160 °, such as 90-140 ° or 120-
In the range of 160 °.Non-flat forms light exit window can also be the window of facet.There is facet to refer to mutual non-zero（It is and non-
180 ° or non-360-degree）The facet of angle arrangement.
Term " upstream " and " downstream " refer to article or feature relative to from photogenerated module（Especially light source herein）
Light propagation arrangement, wherein relative to the first position in the light beam from photogenerated module, in light beam closer to light
The second place of generation module is " upstream ", and in light beam be further away from the 3rd position of photogenerated module " under
Trip ".
This paper term " substantially ", such as will be ability in " essentially all transmitting " or in " basically constituting "
What field technique personnel understood.Term " substantially " may also include the embodiment with " complete ", " whole ", " all " etc..Therefore,
In embodiment, also removable modified is substantially.In the case of applicatory, term " substantially " may also refer to 90% or
It is higher, such as 95% or higher, especially 99% or higher, or even more specifically 99.5% or higher, including 100%.Term " comprising " is also
Comprising wherein term " comprising " represent " by ... form " embodiment.
In addition, the term first, second, third, etc. in description and claims are used to distinguish simultaneously between similar component
And not necessarily for description sequentiality or temporal order.It should be appreciated that the term so used is under appropriate circumstances
It is interchangeable, and the embodiment of invention described herein can be grasped with the order different from what is be described herein or illustrate
Make.
Among other things, this paper device is described during operation.Such as those skilled in the art it will be clear that, this
Invention is not limited to the equipment in the method and operation of operation.
It should be noted that the illustrative and not limiting present invention of embodiment mentioned above, and those skilled in the art can
Many alternate embodiments are designed without departing from scope of the following claims.In the claims, the reference being placed between bracket
Symbol should not be construed as limited to claim.Verb " comprising " and its paradigmatic use are not excluded for removing in claim
The presence of element or step outside those of statement.Article "a" or "an" before element is not excluded for multiple such members
The presence of part.The hardware for including multiple different elements can be relied on, and rely on properly programmed computer to implement the present invention.
In the equipment claim for enumerating multiple modules, multiple in these modules can be embodied by same hardware branch.Mutually not
The same simple fact for being recited in mutually different dependent some measures does not indicate that the combination of these measures cannot be used for benefiting.
One or more characterizations that the present invention is further applicable to include to show described in specification and/or in accompanying drawing are special
The device or equipment of sign.The present invention is special further directed to the one or more including being shown described in specification and/or in accompanying drawing
The method or process of signization feature.
The various aspects discussed in the patent can be combined to provide the advantages of additional.In addition, some in feature can
Form the basis of one or more divisional applications.
Brief description of the drawings
Embodiments of the invention only will be described with reference to accompanying schematic figure by way of example now, it is corresponding in figure
Reference marker indicates corresponding part, and in figure：
Fig. 1 a-1i schematically depict some aspects of the present invention；
Fig. 2 a-2c schematically depict some other aspects of the present invention, including some ray tracing figures；And
Fig. 3 a-3h schematically depict some modifications and some applications.
Figure is not necessarily to scale.
Embodiment
Fig. 1 a schematically depict the embodiment of lighting unit 100 as described herein.Lighting unit includes lighting unit
Chamber 130, light source cell 110 and light exit window 120.Lighting unit 100 is especially configurable to generate the downstream of light exit window 120（I.e.
Outside lighting unit chamber 130, in downstream face（See below））Light beam 101, the light beam 101 has in sectional plane 202
Beam angle γ in the range of 90-170 °, such as 90-140 ° or 120-160 °（Referring further to hereafter）.
Light source cell 110 is configurable to generate light source cell light 111.Light source cell 110 is including light source 1100 and alternatively
Collimater 1200（It is schematically depicted as existing herein）.Light source cell 110 is configured as providing light source in lighting unit chamber 130
Unit light 111（Especially visible ray）.Pay attention to, only by way of example, light source cell 110 is different, wherein left side light
Source unit 110 includes（Compared with）Small light source, central source unit include light source 1110 and collimater 1200, and the right light source list
Member includes relatively large light source, such as large scale tube core LED.Generally, all light source cells will be similar.Fig. 1 a are schematically retouched
The section view of the array with light source cell is painted.Along the longitudinal axis 1700（Referring further to hereafter）, light source cell 110 may be present
The other dimension of array.For example, the schematic diagram can represent the lighting unit with 3xm light source cell arrays, wherein m for example exists
In the range of 1-500, such as 10-500.
Generally（This goes for all embodiments）, when the multiple light sources unit parallel to sectional plane 202 be present,
Each light source cell includes collimater.This can ensure that the light of different light sources carries out illumination to the particular subset of light extraction structures；I.e.
This can reduce single prism structure reception and come from all types direction（Do not limit）Light.Similarly, when using non-point-like light source
When, these can especially be arranged in one-dimensional array（Parallel to the longitudinal axis）In（Referring further to Fig. 3 c）.
In addition, light exit window 120 is configured as sealing at least part of lighting unit chamber 130 and is configured as allowing light
Source unit light 111 transmits at least partly as light beam 101.Light exit window 120 includes upstream face 125 and downstream face 126, wherein
Upstream face 125 points to lighting unit chamber 130.
Generally, light exit window may include or comprising, it may include one selected from the group comprising transmittance organic material supporter
Individual or multiple materials, such as selected from the group comprising the following：PE（Polyethylene）、PP（Polypropylene）、PEN（How is polyethylene）、PC
（Makrolon）, polymethacrylates（PMA）, polymethyl methacrylate（PMMA）（Plexiglas or lucite）, second
Sour cellulose butyrate（CAB）, silicones, polyvinyl chloride（PVC）, polyethyleneterephthalate（PET）、（PETG）（Second two
The polyethyleneterephthalate that alcohol is modified）、PDMS（Dimethyl silicone polymer）And COC（Cyclenes copolymer）.
Lighting unit 100 has the virtual first lighting unit axle 201 in virtual first lighting unit sectional plane 202.
In the schematic diagram, beam axis of the virtual first lighting unit axle 201 parallel to the light from light source cell 110；Virtual first
Lighting unit sectional plane 202 parallel to figure plane, and perpendicular to light exit window 120.Lighting unit can have to indulge
The elongation or elliptical illumination unit of axle 1700.The longitudinal axis 1700 can（Therefore）Put down perpendicular to virtual first lighting unit section
Virtual first lighting unit axle 201 in face 202.The longitudinal axis 1700 can（Therefore）It also is normal to virtual first lighting unit section
Plane 202.Sectional plane 202 can be perpendicular to light exit window 130（As described in Fig. 1 a）.
Reference marker 150 indicates supporter, and it can be used as（It is multiple）The supporter of light source cell 110.As indicated above,
By way of example, central source unit 110 includes collimater 1200, and other light source cells do not include such collimate
Device.However, present invention additionally comprises without or all light source cells 110 include the embodiment of collimater 1200.Supporter can
Including reflecting surface 151.In this way, lighting unit chamber substantially quilt（Transmittance）The He of light exit window 120（It is multiple）Reflect table
Face 151 surrounds.
In fig 1 a, it schematically depict the light exit window of bending.Therefore, angle [alpha], the tangent line of light exit window 120 and
Angle between one lighting unit axle, changes with the length of light exit window.In this embodiment, change at P1 about
0 ° at 90 ° to P1' at 0 ° to P3/P3'.Light exit window 120 may include Part I 121 and Part II 122（It is herein
The left side and the right）.
In sectional plane 202, in light exit window 120 at least on 30% length, light source cell 110 is configured as
Light source cell light 111 is generated at the point P of light exit window 120, its have the point P at light source cell light 111≤20 ° enter
Distribution in firing angle β.Length along light exit window 120 is from P1-P3, and from P3'-P1'（Wherein P3 overlaps with P3'）'s
Length.Along 30% and 30% along length P3'-P1' of P1-P3 length, above-mentioned condition is applicable.Light exit window 120 can
It is divided into two parts, Part I 121 and Part II 122；Wherein in this embodiment, Part I be perpendicular to cut
The still part also on the side of the plane including the first lighting unit axle 201, and wherein Part II 122 of facial plane 202
It is still also to include such plane of the first lighting unit axle 201 perpendicular to sectional plane 202（It is i.e. vertical with the plane of figure
Plane）Opposite side on.
Angle beta can be considered as the angle between two rays 1112 and 1111, and two rays are derived from same light source unit,
But there is mutual maximum angle, the distribution in incidence angle.Therefore, its be maximum between the ray of single source unit mutually
Angle.Light source/light source cell is bigger, and the angle beta can be bigger.Similarly, lighting unit chamber 130 is bigger, and the angle beta just will be more
It is small.The example of such distribution in incidence angle is indicated for difference P, for the sake of reference using reference marker P2, P4 and
P2'（Utilize ray 1111' and 1112'）Indicated.Angle is smaller, and the light impinged upon in light outcoupling structure 140 is more
Ground limits.
In sectional plane 202, in light exit window 120 at least on 30% length, upstream face 125 also includes the outer coupling of light
Structure 140 is closed, it is configured as that light source cell light 111 being coupled to outside lighting unit 100 via light exit window 120.Especially,
Light outcoupling structure 140 may include prismatic light out-coupling structure 141.Along P1-P3 length 30% and along length P3'-
The 30% of P1', above-mentioned condition is applicable.
Fig. 1 b are another embodiments, schematically depict V-arrangement light exit window 120 herein.Here, two facets are to form light
Two parts 121,122 of exit window 120.
Fig. 1 c-1e schematically depict some modifications, and wherein Fig. 1 c are therefore to have to refer to using reference marker 1120 again
The V-arrangement light exit window 120 for two facets shown（1c）, bend light exit window 120（1d）, and there is more than two facet 1120
Light exit window 120.In Fig. 1 e in the embodiment of schematic representation, closer to supporter 150 above two facets 1120
The part of light exit window is can not be, but can be reflexive.Other three facets 1120（Two facets below and water
Flat facet）Can be included by light exit window.Light exit window 120 may include more than three facet 1120.Facet is more, light outgoing
The similarity of the displayable bending light exit window 120 with Fig. 1 d of window is more.
Fig. 1 f and 1g schematically depict such as the illumination of schematic representation in the section in Fig. 1 b/1c and 1a/1d respectively
The 3D versions of unit 100.Generally,（Cavity length）L1>H（Chamber height）And（Cavity length）L1>W（Chamber width）；In addition, usual W>
H.Pay attention to, the condition limited relative to the first lighting unit axle 201 and the first sectional plane 202 is applicable to multiple parallel arrangements
Sectional plane 202（It not necessarily includes the first lighting unit axle 201）；This may depend on the number of light source cell.
Fig. 1 h schematically depict wherein downstream face 126（Also）Embodiment including rebooting structure 157.These can be used for
Light is controlled on the direction of sectional plane 202（Therefore on the direction parallel to the length L1 of lighting unit 100；Also
Referring to Fig. 1 f, 3e and 3f）Distribution.
Fig. 1 i diagrammatically illustrate the embodiment with substantially flat light exit window 120.In such embodiments,
Shell includes（Substantially）Flat light exit window.Shell（Seal the part of chamber 130）Including reflector 151, it is reflecting
The side of body（Downstream）Place includes light exit window 120.At the upstream side of reflector, light source list is arranged at supporter 150
Member 110, is multiple light sources unit 110 herein.Especially, in such embodiments, it is most short between light source cell and reflector
Distance is small, such as<10cm, especially<5cm, such as<In the range of 2.5cm.The distance is indicated using reference marker d2.
Here, using multiple light sources unit 110.The maximum mutual distance between light source cell 110 in imaginary section plane can be<
10cm, especially<5cm, such as<In the range of 2.5cm.Especially, the beginning of reflector 151 exists（It is multiple）At light source cell 110, i.e.,
d2≈0cm.In this way, reflector 151 can have shield effectiveness.Reflector 151 can mainly influence beam angle γ.
The embodiment of schematic representation, that is, have such as in Fig. 1 i（Substantially）The lighting unit of flat light exit window
Embodiment, can have width W, height H and length L1（L1 is perpendicular to the length of the unit of the plane of figure（Referring further to Fig. 1 f,
3a and 3d））, it is about identical for the indoor application of such as office application, i.e. W ≈ H ≈ L1.For outdoor utility,
Especially road lighting, H ≈ L1 and W >=H, especially W >=2*H, or even more specifically W >=4*H.
Fig. 2 a-2c schematically depict some other modifications and/or the aspect of the present invention.Pay attention in fig. 2 a, light outgoing
The upstream face 125 of window includes the section that wherein light outcoupling structure is configured with total internal reflection principle；The section is instructed to
For TIR sections 1141, and including such as prismatic light out-coupling structure 141.Section closer to supporter 150 includes wherein light
Out-coupling structure is configured with the section of refraction principle；The section is indicated as reflecting section 1147, and including refraction
Out-coupling structure 147.Fig. 2 b and 2c schematically depict V-arrangement embodiment（2b）With the implementation with multiple V-arrangement light exit windows 120
The ray tracing of example.Reference marker 600 indicates road.Using the lighting unit 100 of the present invention, on the substantial length of road
Good distribution be possible.Therefore, have（It is multiple）The supporter of light source cell is highly diagrammatically portrayed as rod.
With reference to figure 2c, in embodiment, the present invention, which also provides one kind, to be included multiple lighting unit chambers 130 and is configured as
Generate the multiple light sources unit of light source cell light（It is not separately depicted）Lighting unit 100, wherein light source cell include light source and
Alternatively collimater, wherein light source cell are configured as providing light source cell light in lighting unit chamber 130.
Fig. 3 a-3f schematically depict some aspects and the modification of the lighting unit of the present invention.In fig. 3 a, chamber 130 enters
One step includes collimater 1200 or reflector to control light in the distribution on the direction of sectional plane 202.This can be
Simple V-arrangement reflector with reflecting surface 151.Pay attention to, lighting unit chamber 130 will be generally closed；But in order to understand
For the sake of, depict Unclosing structure.
Fig. 3 b schematically depict the chlamydate lighting unit embodiment of tool, and the shell has multiple facets, gone out with light
Penetrate facet 1120 and the reflecting surface 151 of window 120.Put down relative to perpendicular to the first lighting unit axle and the first lighting unit section
The plane in face,（It is multiple）Reflecting surface 151 can have angle η, and it can especially≤40 °, such as≤35 °, such as≤30 °.
Fig. 3 a（Deng）Unit it is repeatable to form series.Highly diagrammatically, show that such illumination is single in figure 3 c
The upper part of member, wherein the repetitive structure of light source cell is by V-arrangement reflector（With A/F w2；With length w1；And have
There is height H1）Seal.With reference to figure 3c, each light source cell 110 may include single source 1100, especially with big LED die
LED light source；However, each light source cell 110 may also include multiple light sources.For example, w1 can be in 5-200mm, such as 10-
In the range of 50mm.For example, w2 can be in the range of 5-50mm, such as 10-25mm.For example, H1 can be in 10-100mm, example
In the range of 20-60mm.L1 can be for example in the range of 10-5000mm, such as 50-2000mm, such as 100-1500mm.
Lighting unit 100 in operation is shown in Fig. 3 d, 3e and 3f.Fig. 3 d schematically depict including light source cell
The lighting unit 100 of 110 array 2110（Such as Fig. 3 c）.Fig. 3 d diagrammatically illustrate such photograph in application with side view
Bright unit 100.Fig. 3 f show the length for the beam for utilizing reference marker LB to indicate using lighting unit control and utilize ginseng
Examine the width of the beam of mark WB instructions.It can obtain for example>10 or even>100 wide aspect ratio LB/WB, it is single without illuminating
More spots of light source in member 100.
Fig. 3 g are substantially identical with Fig. 3 b, but have some more details now.Reference marker L2 is a facet（Light
The part of exit window）Length and W be another facet length.L2+W+L2 is length of the light exit window in sectional plane.
L2 can be for example in the range of 10-50mm, and W can be for example in the range of 10-5000mm, such as 50-1500mm.Ginseng
Examine the angle that marks beta 1 indicates the normal of more precipitous prism facet and the facet of light exit window.For example, being somebody's turn to do in light exit window
At facet, β 1 can be in the range of 5 °.Reference marker β 2 and reference marker β 3 refers also to the method for prism facet and light exit window
The angle of line.The section R2 with smaller angle β 3 may be present, and there is larger angle（It is less precipitous）Section R2.Cause
This, the steepness of the facet of prism structure can be in light exit window（Upstream face）On change.Reference marker PP1, PP2 and
PP3 indicates pitch.Especially R1 >=R2, or even more specifically L2+R1>R2, or even more specifically L2+R1>2*R2.In sectional plane,
On whole length L2+W+L2, but at least at least the 30% of the length of light exit window 120, prism structure can be arranged
At the upstream face of light exit window.
Fig. 3 h schematically depict application of multiple lighting units 100 as lighting unit arrangement 1000.
Claims (16)
- A kind of 1. lighting unit（100）, including：- lighting unit chamber（130）,- it is configurable to generate light source cell light（111）Light source cell（110）, wherein the light source cell（110）Including light Source（1100）And collimater（1200）, wherein the light source cell（110）It is configured as in the lighting unit chamber（130）In carry For light source cell light（111）, and- light exit window（120）, it is configured as sealing the lighting unit chamber（130）At least part and be configured as permitting Perhaps described light source cell light（111）At least partly as light beam（101）Transmission, wherein the light exit window（120）Including upper Trip face（125）And downstream face（126）, wherein the upstream face（125）Point to the lighting unit chamber（130）；Wherein described lighting unit（100）With virtual first lighting unit sectional plane（202）In virtual first illumination it is single First axle（201）,Wherein in the sectional plane（202）It is interior, in the light exit window（120）At least on 30% length：- the upstream face（125）Including light outcoupling structure（140）, it is configured as via the light exit window（120）Will The light source cell light（111）It is coupled to the lighting unit（100）Outside, wherein the light outcoupling structure（140）Including Prismatic light out-coupling structure（141）,- the light source cell（110）The particular subset of illumination light extraction structures is configured as, and in the light exit window （120）A bit（P）Place generates the light source cell light（111）, it is in the point（P）Place has the light source cell light （111）≤ 20 ° of incidence angle（β）In distribution, andWherein described lighting unit（100）It is configurable to generate the light exit window（120）The light beam in downstream（101）, its institute State sectional plane（202）The interior beam angle having in the range of 90-170 °（γ）.
- 2. lighting unit according to claim 1（100）, wherein further in the sectional plane（202）It is interior, go out in the light Penetrate window（120）At least on 30% length：The light exit window（120）It is arranged in and the lighting unit axle（201）30-60 ° in the range of inclination angle（α）It Under.
- 3. according to the lighting unit of any one of preceding claims（100）, wherein in the sectional plane（202）It is interior, in institute State light exit window（120）At least on 30% length：- the light source cell（110）It is configured as in the light exit window（120）A bit（P）Place generates the light source cell Light（111）, it is in the point（P）Place has the light source cell light（111）≤ 10 ° of incidence angle（β）In distribution.
- 4. lighting unit as claimed in one of claims 1-2（100）, wherein the light exit window（120）It is V-arrangement, its With the angle being arranged in the range of 45-90 °（δ）Under two facets（1120）.
- 5. lighting unit as claimed in one of claims 1-2（100）, wherein the light exit window（120）With bending Shape.
- 6. lighting unit as claimed in one of claims 1-2（100）, wherein the light exit window（120）Including multiple quarters Face（1120）, one of facet（1120）It is arranged to perpendicular to the first lighting unit axle（201）.
- 7. lighting unit as claimed in one of claims 1-2（100）, wherein the light exit window（120）It is flat.
- 8. lighting unit as claimed in one of claims 1-2（100）, wherein the chamber（130）With chamber height（H）Most Big chamber width（W）, its lumen height is to the ratio of chamber width more than 0.4.
- 9. lighting unit according to claim 8（100）, its lumen height is to the ratio of chamber width more than 0.7.
- 10. lighting unit as claimed in one of claims 1-2（100）, wherein the collimater（1200）It is configured as Perpendicular to the sectional plane（202）Direction on collimate the light source light（111）.
- 11. lighting unit as claimed in one of claims 1-2（100）, wherein the chamber（130）Part by reflector （150）Seal.
- 12. lighting unit as claimed in one of claims 1-2（100）, wherein the upstream face（125）Also include that there is folding Penetrate light outcoupling structure（142）Section, and wherein described upstream face（125）At least 50% include prism light outcoupling knot Structure（141）.
- 13. lighting unit as claimed in one of claims 1-2（100）, including light source cell（110）Array（2110）, And the light exit window of elongation（120）, it is configured as sealing the lighting unit chamber（130）At least part and be configured To allow the light source cell light（111）At least partly as light beam（101）Transmission.
- 14. lighting unit as claimed in one of claims 1-2（100）, in addition to the downstream face（126）Place it is multiple again Guide structure（150）, wherein described reboot structure（150）It is configured as controlling the light beam（101）Perpendicular to described section Facial plane（202）Direction on distribution.
- 15. lighting unit as claimed in one of claims 1-2（100）, wherein the light source cell（110）Including solid-state LED（Light emitting diode）, and wherein described lighting unit（100）It is configurable to generate the light exit window（120）Downstream Light beam（101）, it has the beam angle in the range of 90-140 °（γ）.
- 16. according to the lighting unit of any one of preceding claims（100）For illumination road（600）Purposes.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261731839P | 2012-11-30 | 2012-11-30 | |
| US61/731839 | 2012-11-30 | ||
| EP13174655.4 | 2013-07-02 | ||
| EP13174655 | 2013-07-02 | ||
| PCT/IB2013/060330 WO2014083486A1 (en) | 2012-11-30 | 2013-11-22 | Lighting unit, especially for road illumination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104797879A CN104797879A (en) | 2015-07-22 |
| CN104797879B true CN104797879B (en) | 2017-11-10 |
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ID=48782181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380062416.XA Active CN104797879B (en) | 2012-11-30 | 2013-11-22 | Particularly for the lighting unit of road illumination |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9383083B2 (en) |
| EP (1) | EP2926047B1 (en) |
| JP (1) | JP6290241B2 (en) |
| CN (1) | CN104797879B (en) |
| WO (1) | WO2014083486A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015013594A1 (en) * | 2013-07-26 | 2015-01-29 | Bright View Technologies Corporation | Shaped microstructure-based optical diffusers |
| WO2015177007A1 (en) * | 2014-05-22 | 2015-11-26 | Koninklijke Philips N.V. | Luminaire, especially for road lighting |
| ES2597740B1 (en) * | 2016-10-05 | 2017-08-04 | Sacyr Concesiones, S.L. | ROAD TUNNEL LIGHTING SYSTEM |
| USD823520S1 (en) * | 2016-12-19 | 2018-07-17 | RAB Lighting Inc. | Half bell light fixture |
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| US3329812A (en) * | 1965-03-08 | 1967-07-04 | Mc Graw Edison Co | Luminaire optical assembly |
| FR2282353A1 (en) * | 1974-08-23 | 1976-03-19 | Cibie Projecteurs | MOTOR VEHICLE PROJECTOR KIT |
| GB2092734B (en) * | 1981-02-05 | 1985-03-27 | Thorn Emi Ltd | Lanterns for area lighting |
| US4698734A (en) * | 1984-06-01 | 1987-10-06 | Peerless Lighting Corporation | Lensed indirect luminaire with side angle brightness control |
| NL8403063A (en) * | 1984-10-09 | 1986-05-01 | Philips Nv | LIGHTING LUMINAIRE. |
| GB2184824A (en) * | 1985-12-19 | 1987-07-01 | Duracell Int | Improvements in rear lights for bicycles and other vehicles |
| US5335157A (en) * | 1992-01-07 | 1994-08-02 | Whelen Technologies, Inc. | Anti-collision light assembly |
| US5388035A (en) * | 1993-07-23 | 1995-02-07 | Federal-Mogul Corporation | Automotive marker lamp |
| IT1289716B1 (en) * | 1996-12-05 | 1998-10-16 | Fiat Ricerche | LIGHTING DEVICE SUITABLE TO GENERATE A RECTANGULAR PATTERN IN THE WORKING AREA, FOR EXAMPLE FOR THE LIGHTING OF STRIPS |
| TW330233B (en) * | 1997-01-23 | 1998-04-21 | Philips Eloctronics N V | Luminary |
| JP2000276693A (en) * | 1999-03-26 | 2000-10-06 | Stanley Electric Co Ltd | Traffic signal lamp |
| US6616299B2 (en) | 2001-02-02 | 2003-09-09 | Gelcore Llc | Single optical element LED signal |
| US7360936B2 (en) | 2003-06-10 | 2008-04-22 | Abu-Ageel Nayef M | Method and system of LED light extraction using optical elements |
| SE0600675L (en) * | 2006-03-24 | 2007-02-20 | Prismalence Ab | Lighting fixture with a cover glass which includes parallel projecting cams |
| JP4061334B2 (en) * | 2006-05-18 | 2008-03-19 | 株式会社プラテック | Lighting cover and lighting fixture |
| US7578605B1 (en) | 2006-09-06 | 2009-08-25 | Patrick Stuart Mullins | Light shaping reflector system and method of manufacture and use |
| US7306356B1 (en) | 2006-12-11 | 2007-12-11 | William Yaghoob Ahmadi | Illuminating angular display system |
| CN101424384B (en) | 2007-10-31 | 2011-05-04 | 富士迈半导体精密工业（上海）有限公司 | Light shield and illuminating apparatus employing the light shield |
| WO2009107052A1 (en) * | 2008-02-27 | 2009-09-03 | Koninklijke Philips Electronics N.V. | Illumination device with led and one or more transmissive windows |
| US8899782B2 (en) | 2010-03-31 | 2014-12-02 | Koninkljke Philips N.V. | Lighting system and light source unit for such a system |
| US9194541B2 (en) * | 2011-11-10 | 2015-11-24 | Epistar Corporation | Illumination apparatus |
-
2013
- 2013-11-22 US US14/647,516 patent/US9383083B2/en active Active
- 2013-11-22 EP EP13826605.1A patent/EP2926047B1/en active Active
- 2013-11-22 JP JP2015544583A patent/JP6290241B2/en active Active
- 2013-11-22 WO PCT/IB2013/060330 patent/WO2014083486A1/en active Application Filing
- 2013-11-22 CN CN201380062416.XA patent/CN104797879B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104797879A (en) | 2015-07-22 |
| US20150330605A1 (en) | 2015-11-19 |
| WO2014083486A1 (en) | 2014-06-05 |
| EP2926047B1 (en) | 2017-01-11 |
| EP2926047A1 (en) | 2015-10-07 |
| JP6290241B2 (en) | 2018-03-07 |
| JP2015535655A (en) | 2015-12-14 |
| US9383083B2 (en) | 2016-07-05 |
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